The “SSL Certificate” stands for “Security Socket Layers Certificate”. This protocol was created to protect data travelling between two machines through data encryption.
All the information from the Internet is basically transferred from one location to another in the form of HTTP language (Hyper Text Transfer Protocol). But HTTP by itself is unprotected and susceptible to Internet tricksters and thieves. That’s why SSL Certificates were developed to protect the information travelling on the Internet.
You may know about the SSL Certificates by some common things you see in your browser: the padlock, the browser bar turning green, the “HTTPS” on the browser tab (when HTTP is being protected by SSL it inherits the letter “S”).
These are all indications that the website you are using has SSL encryption and its information is secure against cyber attacks.